/snf-cyclades-app/synnefo/api/networks.py - Diff - Synnefo - Greek Research and Technology Network's projects

Revision a96e84cf snf-cyclades-app/synnefo/api/networks.py

     # Copyright 2011-2013 GRNET S.A. All rights reserved.
+    #
     # Redistribution and use in source and binary forms, with or
     # without modification, are permitted provided that the following
     # conditions are met:
+    #
     #   1. Redistributions of source code must retain the above
     #      copyright notice, this list of conditions and the following
     #      disclaimer.
+    #
     #   2. Redistributions in binary form must reproduce the above
     #      copyright notice, this list of conditions and the following
     #      disclaimer in the documentation and/or other materials
     #      provided with the distribution.
+    #
     # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
     # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
     # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
     # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     # POSSIBILITY OF SUCH DAMAGE.
+    #
     # The views and conclusions contained in the software and
     # documentation are those of the authors and should not be
     # interpreted as representing official policies, either expressed
     # or implied, of GRNET S.A.
     from django.conf import settings
     from django.conf.urls import patterns
     from django.http import HttpResponse
     from django.utils import simplejson as json
     from django.db import transaction
     from django.db.models import Q
     from synnefo.db.pools import EmptyPool
     from synnefo.db.utils import validate_mac
     from django.conf import settings
     from snf_django.lib import api
     from snf_django.lib.api import utils
     from synnefo.logic import backend
     from django.template.loader import render_to_string
     from snf_django.lib import api
     from synnefo.api import util
     from synnefo.db.models import Network
     from synnefo.logic import networks
     from logging import getLogger
     from synnefo import quotas
     log = getLogger(__name__)
     urlpatterns = patterns(
         'synnefo.api.networks',
         (r'^(?:/|.json|.xml)?$', 'demux'),
         (r'^/detail(?:.json|.xml)?$', 'list_networks', {'detail': True}),
         (r'^/(\w+)(?:/|.json|.xml)?$', 'network_demux'))
     def demux(request):
         if request.method == 'GET':
             #return HttpResponse("in network get")
             return list_networks(request)
         elif request.method == 'POST':
             return create_network(request)
             #return HttpResponse("in network post")
         else:
             return api.api_method_not_allowed(request)
     def network_demux(request, offset):
     def network_demux(request, network_id):
         if request.method == 'GET':
             return get_network(request, offset)
             #return HttpResponse("in network det get")
             return get_network_details(request, network_id)
         elif request.method == 'DELETE':
             return delete_network(request, offset)
             #return HttpResponse("in network det delete")
             return delete_network(request, network_id)
         elif request.method == 'PUT':
             return update_network(request, offset)
             #return HttpResponse("in network det put")
             return update_network(request, network_id)
         else:
             return api.api_method_not_allowed(request)
-...
     def list_networks(request, detail=False):
         log.debug('list_networks detail=%s', detail)
         user_networks = Network.objects.filter(
             Q(userid=request.user_uniq) | Q(public=True))
         user_networks = Network.objects.filter(Q(userid=request.user_uniq) |
                                                Q(public=True))\
                                        .prefetch_related("subnets")
         user_networks = utils.filter_modified_since(request, objects=user_networks)
         user_networks = api.utils.filter_modified_since(request,
                                                         objects=user_networks)
         networks = [network_to_dict(network, detail)
                     for network in user_networks.order_by('id')]
         network_dicts = [network_to_dict(network, detail)
                          for network in user_networks.order_by('id')]
         if request.serialization == 'xml':
             data = render_to_string('list_networks.xml', {
                 "networks": networks})
                 "networks": network_dicts})
         else:
             data = json.dumps({'networks': networks})
             data = json.dumps({'networks': network_dicts})
         return HttpResponse(data, status=200)
     @api.api_method(http_method='POST', user_required=True, logger=log)
     @transaction.commit_manually
     def create_network(request):
         try:
             user_id = request.user_uniq
             req = utils.get_request_dict(request)
             log.info('create_network %s', req)
             try:
                 d = req['network']
             except KeyError:
                 raise api.faults.BadRequest("Malformed request")
             try:
                 flavor = d['type']
             except KeyError:
                 raise api.faults.BadRequest("Missing request parameter 'type'")
             if flavor not in Network.FLAVORS.keys():
                 raise api.faults.BadRequest("Invalid network type '%s'"
                                             % flavor)
             if flavor not in settings.API_ENABLED_NETWORK_FLAVORS:
                 msg = "Can not create network of type '%s'"
                 raise api.faults.Forbidden(msg % flavor)
             try:
                 name = d['name']
             except KeyError:
                 name = ""
             try:
                 #mode, link, mac_prefix, tags = util.values_from_flavor(flavor)
                 #validate_mac(mac_prefix + "0:00:00:00")
                 network = Network.objects.create(
                     name=name,
                     userid=user_id,
                     flavor=flavor,
                     #mode=mode,
                     #link=link,
                     #mac_prefix=mac_prefix,
                     #tags=tags,
                     action='CREATE',
                     state='ACTIVE')
             except EmptyPool:
                 msg = "Failed to allocate resources for network of type: %s"
                 log.error(msg, flavor)
                 raise api.faults.ServiceUnavailable("Failed to allocate network\
                       resources")
             # Issue commission to Quotaholder and accept it since at the end of
             # this transaction the Network object will be created in the DB.
             # Note: the following call does a commit!
             #quotas.issue_and_accept_commission(network)
             # COME BACK....
         except:
             transaction.rollback()
             log.info("roll")
             raise
         else:
             transaction.commit()
             log.info("commit")
         networkdict = network_to_dict(network)
         userid = request.user_uniq
         req = api.utils.get_request_dict(request)
         log.info('create_network %s', req)
         network_dict = api.utils.get_attribute(req, "network")
         flavor = api.utils.get_attribute(network_dict, "type")
         if flavor not in Network.FLAVORS.keys():
             raise api.faults.BadRequest("Invalid network type '%s'" % flavor)
         if flavor not in settings.API_ENABLED_NETWORK_FLAVORS:
             raise api.faults.Forbidden("Can not create network of type '%s'." %
                                        flavor)
         name = api.utils.get_attribute(network_dict, "name", required=False)
         if name is None:
             name = ""
         network = networks.create(userid=userid, name=name, flavor=flavor,
                                   public=False)
         networkdict = network_to_dict(network, detail=True)
         response = render_network(request, networkdict, status=201)
         return response
     @api.api_method(http_method='GET', user_required=True, logger=log)
     def get_network(request, network_id):
     def get_network_details(request, network_id):
         log.debug('get_network_details %s', network_id)
         net = util.get_network(network_id, request.user_uniq)
         network = util.get_network(network_id, request.user_uniq)
         return render_network(request, network_to_dict(network, detail=True))
         #needs discussion
         if net.deleted:
             raise api.faults.BadRequest("Network has been deleted.")
         else:
             netdict = network_to_dict(net)
             return render_network(request, netdict)
     @api.api_method(http_method='PUT', user_required=True, logger=log)
     def update_network(request, network_id):
         info = api.utils.get_request_dict(request)
         network = api.utils.get_attribute(info, "network", required=True)
         new_name = api.utils.get_attribute(network, "name")
         network = util.get_network(network_id, request.user_uniq, for_update=True)
         if network.public:
             raise api.faults.Forbidden("Can not rename the public network.")
         network = networks.rename(network, new_name)
         return render_network(request, network_to_dict(network), 200)
     @api.api_method(http_method='DELETE', user_required=True, logger=log)
     @transaction.commit_on_success
     def delete_network(request, network_id):
         log.info('delete_network %s', network_id)
         net = util.get_network(network_id, request.user_uniq, for_update=True)
         log.info(net.name)
         if net.public:
             raise api.faults.Forbidden('Can not delete the public network.')
         if net.deleted:
             raise api.faults.BadRequest("Network has been deleted.")
         if net.machines.all():  # Nics attached on network
             #raise api.faults.NetworkInUse('Machines are connected to network.')
             #edit to return with 409
             return HttpResponse("Network in use", status=409)
         #check if there are any floating ips reserved
         #if net.floating_ips.all():
         #    #raise api.faults.NetworkInUse('Machines are connected to network.')
         #    #edit to return with 409
         #    return HttpResponse("Network in use", status=409)
         net.action = 'DESTROY'
         '''
         skip the backend part...
         backend_networks = net.backend_networks.exclude(operstate="DELETED")
         for bnet in backend_networks:
             backend.delete_network(net, bnet.backend)
         if not backend_networks:
             backend.update_network_state(net)
         '''
         #delete all the subnets
         for s in net.subnets.all():
             s.deleted = True
         #the following has to leave when fix the backend thing
         net.deleted = True
         net.save()
         network = util.get_network(network_id, request.user_uniq, for_update=True)
         if network.public:
             raise api.faults.Forbidden("Can not delete the public network.")
         networks.delete(network)
         return HttpResponse(status=204)
     @api.api_method(http_method='PUT', user_required=True, logger=log)
     def update_network(request, network_id):
         '''
         You can update only name
         '''
         net = util.get_network(network_id, request.user_uniq, for_update=True)
         info = utils.get_request_dict(request)
         updatable = set(["name"])
         try:
             new_vals = info["network"]
         except KeyError:
             raise api.faults.BadRequest("Malformed request")
         for key, val in new_vals.iteritems():
             if key in updatable:
                 setattr(net, key, val)
             else:
                 raise api.faults.BadRequest("Wrong field update")
         net.save()
         netdict = network_to_dict(net)
         return render_network(request, netdict, 200)
     def network_to_dict(network, detail=True):
         d = {'id': str(network.id), 'name': network.name}
         d['links'] = util.network_to_links(network.id)
-...
             d['user_id'] = network.userid
             d['tenant_id'] = network.userid
             d['type'] = network.flavor
             d['updated'] = utils.isoformat(network.updated)
             d['created'] = utils.isoformat(network.created)
             d['updated'] = api.utils.isoformat(network.updated)
             d['created'] = api.utils.isoformat(network.created)
             d['status'] = network.state
             d['public'] = network.public
             d['external_router'] = network.external_router
             d['external_router'] = network.external_router
             d['admin_state_up'] = True
             subnet_cidr = [s.id for s in network.subnets.all()]
             d['subnets'] = subnet_cidr
             d['subnets'] = list(network.subnets.values_list('id', flat=True))
         return d

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